The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2017
Filed:
Sep. 12, 2013
Mbda Uk Limited, Stevenage, Hertfordshire, GB;
Lee Douglas Miller, Bristol, GB;
Karen Louise McKee, Bristol, GB;
MBDA UK LIMITED, Hertfordshire, GB;
Abstract
A building comprising a plurality of rooms () includes a room occupancy sensing apparatus. A light source () emits a series of light pulses (), a plurality of waveguides deliver light from the light source to output nodes () located in the rooms, and a signal capture unit () receives output signals resulting from light reflected by objects in the rooms. The apparatus detects movement, of for example a person (), in a room and ascertains the room concerned by virtue of (i) detecting a difference between the shape of the waveform of the signal () received at the signal capture unit () in response to a first emitted light pulse and the shape of the waveform of the signal () received at the signal capture unit in response to a second emitted light pulse and (ii) relating said reflected light pulses to the appropriate output node and therefore to the room () associated with that output node ().